Number Logic Puzzle 12188

Rules:

The goal is to fill a grid with digits so that each column and each row contain the digits only once.

This puzzle has Rectangular Blocks. Every block contains each of the digits only once.

This puzzle has an Overlapping Variant. Overlapping variant consits of several puzzles. Shared blocks are highlighted by a different color. This puzzle has a Diagonal Variant. Every diagonal line contains each of the digits only once.